Answer:
AB, DC, ED, GA
Explanation:
You want to identify the segments that are skew to edge FH of cuboid ABCDEFGH.
Skew lines
Two lines are skew when no plane exists that can contain them both. That is, skew lines are not parallel and do not intersect.
Cuboid ABCDEFGH has 12 edges. Of those, 3 are parallel to FH, and 4 intersect FH. The remaining edges are skew to FH:
AB, DC, ED, GA . . . . . segments skew to FH